Two people can hunt deer together, but if they are alone, they can only hunt rabbits. The person belonging to the Envious group will choose to hunt rabbits because he or she will be at least equal to the other hunter, or maybe even better; the Optimist will choose to hunt deer because that is the best option for both hunters; the Pessimist will go for rabbits because that way he or she is sure to catch something; and the hunter who belongs to the Trusting group will cooperate and choose to hunt deer, without a second thought.
The largest group, accounting for 30%, being the Envious -- those who don't actually mind what they achieve, as long as they're better than everyone else;
Next are the Optimists -- who believe that they and their partner will make the best choice for both of them -- on 20%.
Also on 20% are the Pessimists -- who select the option which they see as the lesser of two evils -- and the Trusting group -- who are born collaborators and who will always cooperate and who don't really mind if they win or lose.
There is a fifth, undefined group, representing 10%,
https://www.sciencedaily.com/releases/2016/09/160915085719.h...
Two people can hunt deer together, but if they are alone, they can only hunt rabbits. The person belonging to the Envious group will choose to hunt rabbits because he or she will be at least equal to the other hunter, or maybe even better; the Optimist will choose to hunt deer because that is the best option for both hunters; the Pessimist will go for rabbits because that way he or she is sure to catch something; and the hunter who belongs to the Trusting group will cooperate and choose to hunt deer, without a second thought.
The largest group, accounting for 30%, being the Envious -- those who don't actually mind what they achieve, as long as they're better than everyone else;
Next are the Optimists -- who believe that they and their partner will make the best choice for both of them -- on 20%.
Also on 20% are the Pessimists -- who select the option which they see as the lesser of two evils -- and the Trusting group -- who are born collaborators and who will always cooperate and who don't really mind if they win or lose.
There is a fifth, undefined group, representing 10%,